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Mathematics, 20.01.2021 08:10 rafa3997

the sum of the tens digit and the hundreds digit of a 3 digit number is 3 times the unit digit. 1/5 of the sum of 3 digits is 1 less than the units digit

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the sum of the tens digit and the hundreds digit of a 3 digit number is 3 times the unit digit. 1/5...
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